Your plants look real healthy and must be doing something right.
67 day from transplant is not a long time. That is how long it takes from FLOWER to ripe FRUIT in a lot of cases.

Blossom dropping could be due to heat , too much fertilizer, water...
For tomatoes to bear fruits, insects' help is not needed. Their flowers are self-pollinating.

This post was edited by seysonn on Sun, Jul 21, 13 at 1:35

Yaeah, your plants look good. None of my beefsteaks are ripe yet. When you say 'Pineapple' heirloom, is that the same as Hawaiian Pinepple?

Agreed with Seysonn.

Black Zebra is a small, salad size tomato.

http://t.tatianastomatobase.com:88/wiki/Black_Zebra

I'm in NJ as well and am just starting to see some ripening on the larger types where I was fortunate to have to fruit set early on. It all depends on when the fruit set on your plants. Between the rain and then the heat I had a lot of blossom drop and some of my plants only have smaller fruit as well like you.